Cov tshuaj mortar qhuav thiab lawv cov teebmeem

Dry mortar additives plays lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm, kev ua haujlwm, thiab ua haujlwm ntev ntawm cov tshuaj khib nyiab. Nov yog qee cov tshuaj mortar qhuav thiab lawv cov teebmeem:

1. Cellulose Ethers:

• Cov nyhuv: Cellulose ethers, xws li Hydroxypropyl Methylcellulose (HPMC) thiab Hydroxyethyl Cellulose (HEC), ua cov thickeners, dej tuav cov neeg ua hauj lwm, thiab rheology modifiers nyob rau hauv qhuav mortar formulations.
• Cov txiaj ntsig: Lawv txhim kho kev ua haujlwm, ua kom zoo, thiab sag tsis kam, txo qhov shrinkage thiab tawg, txhim kho dej tuav, thiab muab sijhawm qhib zoo dua thiab yooj yim ntawm daim ntawv thov.

2. Redispersible Polymer Powder (RDPs):

• Cov nyhuv: RDPs yog copolymers ntawm yas acetate thiab ethylene uas disperse nyob rau hauv dej thiab re-emulsify thaum ziab, txhim kho cov adhesion, yooj, thiab durability ntawm mortars.
• Cov txiaj ntsig: Lawv txhim kho kev sib raug zoo, kev sib koom ua ke, thiab dej tsis kam, txo kev tawg thiab shrinkage, txhim kho huab cua tsis kam, thiab ua rau kom yooj yim ntawm cov pob qij txha.

3. Air-Entraining Agents:

• Cov nyhuv: Cov cua-entraining cov neeg ua haujlwm qhia cov pa npuas me me rau hauv cov khoom sib tov sib xyaw, txhim kho khov-thaw tsis kam, ua haujlwm tau zoo, thiab plasticity.
• Cov txiaj ntsig: Lawv txhim khu kev ua haujlwm ntev, txo qhov kev pheej hmoo ntawm kev tawg thiab tawg los ntawm lub voj voog khov-thaw, thiab txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm cov tshuaj khib nyiab.

4. Cov Neeg Ua Haujlwm Tsis Txaus Siab:

• Qhov cuam tshuam: Cov neeg ua haujlwm rov qab qeeb qeeb lub sijhawm teeb tsa ntawm mortar, tso cai rau lub sijhawm qhib thiab ua haujlwm ntev dua.
• Cov txiaj ntsig: Lawv txhim kho kev ua haujlwm, ncua sij hawm thov, thiab tiv thaiv kev teeb tsa ntxov, tshwj xeeb tshaj yog thaum huab cua kub lossis thaum ua haujlwm nrog thaj chaw loj.

5. Cov neeg ua haujlwm nrawm:

• Cov nyhuv: Accelerating agents ua kom lub chaw teeb tsa thiab kev txhim kho lub zog thaum ntxov ntawm mortar, tso cai rau kev tsim kho sai dua.
• Cov txiaj ntsig: Lawv txo lub sijhawm kho, ua kom lub zog nce ntxiv, thiab tso cai rau kev ua tiav dhau los lossis thauj khoom ntawm cov qauv tsim, txhim kho cov khoom tsim tau thiab cov sijhawm ua haujlwm.

6. Dej Reducers (Plasticizers):

• Cov nyhuv: Cov dej reducers txhim kho qhov ntws thiab kev ua haujlwm ntawm cov tshuaj khib nyiab los ntawm kev txo cov dej-rau-cement piv.
• Cov txiaj ntsig: Lawv ua kom muaj peev xwm ua haujlwm tau zoo, txhim kho cov twj tso kua mis, txo qis kev sib cais thiab los ntshav, txhim kho kev txhim kho lub zog, thiab tso cai rau kev tsim cov khoom ua haujlwm siab, cov dej tsis muaj dej.

7. Anti-Washout Agents:

• Cov nyhuv: Cov tshuaj tiv thaiv kev ntxhua khaub ncaws txhim kho kev sib koom ua ke thiab adhesion ntawm mortar underwater los yog hauv cov dej ntub dej, tiv thaiv kev ntxuav ntawm cov cement hais.
• Cov txiaj ntsig: Lawv txhim kho qhov ua haujlwm ntev thiab kev sib koom ua ke ntawm cov dej hauv qab dej lossis cov khoom siv ntub dej, txo qhov kev pheej hmoo ntawm kev ua tsis tiav thiab ua kom muaj kev ua haujlwm ntev hauv cov dej hauv hiav txwv lossis hauv dej.

8. Anti-Cracking Agents:

• Cov nyhuv: Anti-cracking agents txo qhov kev pheej hmoo ntawm kev tawg hauv mortar los ntawm kev tswj cov shrinkage thiab txhawb kev ntxhov siab sab hauv.
• Cov txiaj ntsig: Lawv txhim kho qhov ua haujlwm ntev, zoo li, thiab kev ncaj ncees ntawm cov mortar, txo qhov tshwm sim ntawm qhov tawg thiab txhim kho kev ua haujlwm ntev.

Hauv cov ntsiab lus, cov tshuaj khib nyiab qhuav xws li cellulose ethers, redispersible polymer hmoov, air-entraining agents, retarding agents, accelerating agents, water reducers, anti-washout agents, and anti-cracking agents plays lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm, kev ua haujlwm, durability, thiab zoo li mortar formulations, catering rau tej daim ntawv thov yuav tsum tau thiab ib puag ncig tej yam kev mob.